meta: Make Meta's BlitFramebuffer() follow the GL 4.4 sRGB rules.
meta: Make Meta's BlitFramebuffer() follow the GL 4.4 sRGB rules.

Just avoid whacking GL_FRAMEBUFFER_SRGB altogether, so we respect
the application's setting.  This appears to work.

v2: Update one more comment (requested by Ian).

Signed-off-by: Kenneth Graunke <bd2562f754ec92342f93f61c25d731e290a2ffa8@whitecape.org>
Reviewed-by: Ian Romanick <2b237cafb16dc45038e85df6c85e74e6d899eba9@intel.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler